Compare Simcom Wireless SIM900B Vs M12


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Model SIM900B M12
Price $15.75 $
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Manufacturer Simcom Wireless
Form Factor Board-to-Board Connector LCC Castellation
Dimensions 45 x 34 x 3 mm 29 x 29 x 3.6 mm
Surface Area 1530 sq. mm 841 sq. mm
Volume 4590 cubic mm 3027.6 cubic mm
Technologies GSM, GPRS GSM, GPRS
Max. Upload Speed 85.6 Kbps 85.6 Kbps
Max. Download Speed 85.6 Kbps 85.6 Kbps
GSM Bands 850, 900, 1800, 1900 MHz 900, 1800 MHz
WCDMA Bands N/A N/A
LTE Bands N/A N/A
EVDO Bands N/A N/A
1xRTT Bands N/A N/A
Interfaces ADC, GPIO, I2C, SDIO, SIM, SPI, UART, USB N/A
GPS Support No No
GNSS Support No No
Voice Support PCM, Analog PCM, Analog
Automotive Support No No
Temperature -30 C to 80 C -40 C to 85 C
Carrier Approvals Not Available Not Available
Certifications CE, FCC, IC, ICASA, PTCRB, ROHS CE, UCRF